Return-Path: Received: from mout.perfora.net ([74.208.4.194] verified) by media-motion.tv (CommuniGate Pro SMTP 4.2.10) with ESMTP-TLS id 5389520 for AE-List@media-motion.tv; Tue, 25 Feb 2014 18:03:08 +0100 Received: from mbp-17.netgear.com (50-50-54-2.waus.wi.frontiernet.net [50.50.54.2]) by mrelay.perfora.net (node=mrus3) with ESMTP (Nemesis) id 0MZkzG-1WX76m1x9y-00Lf84; Tue, 25 Feb 2014 12:03:19 -0500 From: Steve Oakley Content-Type: multipart/alternative; boundary="Apple-Mail=_ACAE9B88-E772-4868-8E2D-6F5A509371EA" Message-Id: Mime-Version: 1.0 (Mac OS X Mail 7.1 \(1827\)) Subject: Re: [AE] Motion tracking Date: Tue, 25 Feb 2014 11:03:19 -0600 References: To: After Effects Mail List In-Reply-To: X-Mailer: Apple Mail (2.1827) X-Provags-ID: V02:K0:KrDOl5WVUK+vL4r54OFgaWqIbQ0tHNhOlREJ9vtJMUk MkaEayVi1OgwQ/L1tP8Cn3xkbEJaR2+UXtba9AgJlrQyVl3llo EiwwZiHH8CGYgJAgXJmssE9clykIhh+jFOvQdek0mOkH340KMz AK6DThsAhIxgLNQuX9QA6IRq/DKoCo96H9fm4VEoP1IQCJ6SMP GnYNoXXkeCBTJJNAujs0XEJCNRmJpgbJzcFrVmx+vYpup9bzUc zzGl1rta1KxEWsZGcWDRKfvB8D9sWojVltozSVDw1hwCAr16xZ AFlj66F/5CnszmoMm0g/vzTCma/1wLMxdtJZBdPB/er+MuncoI e9vfGq/Tq7moAHo6f6X9dOXP2v3KOenA1WVds0wk6JsjuLxnW5 /I/y8NeMl8jpQ== --Apple-Mail=_ACAE9B88-E772-4868-8E2D-6F5A509371EA Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=iso-8859-1 I agree. so much depends on camera, mount, and if the props on the = copter are balanced. bad balance =3D lots of vibration. there are so = many factors involved that I'd want some quick tests or sample shots = using same setup to see what problems you may or may not have. S >=20 > On Tue, Feb 25, 2014 at 10:46 AM, David Torno = wrote: > Depends on the camera being used. Drone recorded footage is VERY = shaky, unless stabilized via a camera rig, not a post process. If a = GoPro or CMOS chip camera is used, then rolling shutter becomes a huge = issue. Given how intense a drone shakes, you can end up with a very = warbled image that makes proper 3D tracking impossible. It's like = tracking a funhouse mirror, no object is a reliable track point due to = the constant rolling shutter warping. Clean stable image =3D clean post = work. >=20 > David Torno > Technical Director > http://www.ghosttownmedia.com > O: 213.739.2290 > C: 818.391.6060 > -------------------- > http://aeioweyou.blogspot.com >=20 > "The most useless day is that in which we do not laugh" > -Charles Field >=20 > On Feb 25, 2014, at 3:33 AM, Anthony Clifford = wrote: >=20 >> Helle people, >>=20 >> I will start a exciting motion tracking assignment in a week. >>=20 >> The footage will be shot by a Drone. We will film a large open field = where >> there eventually be 3D buildings.=20 >>=20 >> So some motion tracking and some 3D work. >>=20 >> Would the 3D camera tracker inside of AE be sufficient or should I = try an other one? >>=20 >> And do I need tracker markers on the field?=20 >>=20 >> I am new at this and every tip is very welcome. >>=20 >> Cheers, >> Anthony >>=20 >>=20 >>=20 >>=20 >> +---End of message---+ >> To unsubscribe send any message to >>=20 >=20 >=20 >=20 > --=20 > Eric D. Kirk | Kirk Productions > Hidden in the Woods | VFX > The Night Visitor | VFX > 443.206.1347 > www.kirkproductions.com > kirkproductions@gmail.com > IMDB: http://www.imdb.com/name/nm3351363/ > =20 --Apple-Mail=_ACAE9B88-E772-4868-8E2D-6F5A509371EA Content-Transfer-Encoding: 7bit Content-Type: text/html; charset=iso-8859-1

I agree. so much depends on camera, mount, and if the props on the copter are balanced. bad balance = lots of vibration. there are so many factors involved that I'd want some quick tests or sample shots using same setup to see what problems you may or may not have.

S


On Tue, Feb 25, 2014 at 10:46 AM, David Torno <torno@sydefxink.com> wrote:
Depends on the camera being used. Drone recorded footage is VERY shaky, unless stabilized via a camera rig, not a post process. If a GoPro or CMOS chip camera is used, then rolling shutter becomes a huge issue. Given how intense a drone shakes, you can end up with a very warbled image that makes proper 3D tracking impossible. It's like tracking a funhouse mirror, no object is a reliable track point due to the constant rolling shutter warping. Clean stable image = clean post work.

David Torno
Technical Director
--------------------

"The most useless day is that in which we do not laugh"
-Charles Field

On Feb 25, 2014, at 3:33 AM, Anthony Clifford <anthony@sensia-media.nl> wrote:

Helle people,

I will start a exciting motion tracking assignment in a week.

The footage will be shot by a Drone. We will film a large open field where
there eventually be 3D buildings.

So some motion tracking and some 3D work.

Would the 3D camera tracker inside of AE be sufficient or should I try an other one?

And do I need tracker markers on the field?

I am new at this and every tip is very welcome.

Cheers,
Anthony




+---End of message---+
To unsubscribe send any message to <ae-list-off@media-motion.tv>




--
Eric D. Kirk | Kirk Productions
Hidden in the Woods | VFX
The Night Visitor | VFX
443.206.1347
 

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